/* ============================= */
/* GENEL AYARLAR */
/* ============================= */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background: #0e0e0e;
  color: #ffffff;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ============================= */
/* NAVBAR */
/* ============================= */

nav {
  width: 100%;
  background: #111;
  padding: 15px 0;
  text-align: center;
  position: sticky;
  top: 0;
  z-index: 999;
  border-bottom: 1px solid #222;
}

nav a {
  color: white;
  text-decoration: none;
  margin: 0 20px;
  font-weight: 500;
  transition: 0.3s;
}

nav a:hover {
  color: crimson;
}

/* ============================= */
/* AÇILIŞ EKRANI */
/* ============================= */

#intro {
  position: fixed;
  width: 100%;
  height: 100vh;
  background: #000;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 2000;
}

.intro-box {
  background: #111;
  padding: 50px;
  border-radius: 15px;
  border: 1px solid #222;
  text-align: center;
  animation: fadeIn 1.5s ease-in-out;
}

.intro-box h2 {
  margin-bottom: 20px;
}

.intro-box button {
  margin-top: 20px;
  padding: 12px 30px;
  background: crimson;
  border: none;
  color: white;
  border-radius: 30px;
  cursor: pointer;
  font-size: 16px;
  transition: 0.3s;
}

.intro-box button:hover {
  background: darkred;
  transform: scale(1.05);
}

/* ============================= */
/* HEADER */
/* ============================= */

header {
  padding: 120px 20px;
  text-align: center;
  background: linear-gradient(135deg, #1a1a1a, #2a0000);
}

header h1 {
  font-size: 52px;
  margin-bottom: 15px;
  letter-spacing: 2px;
}

.tagline {
  opacity: 0.8;
  font-size: 18px;
  margin-bottom: 40px;
}

/* ============================= */
/* BUTONLAR */
/* ============================= */

.buttons {
  margin-top: 20px;
}

.btn {
  display: inline-block;
  padding: 14px 30px;
  margin: 10px;
  text-decoration: none;
  border-radius: 40px;
  font-weight: bold;
  transition: 0.3s;
  letter-spacing: 1px;
}

.youtube {
  background: red;
  color: white;
}

.youtube:hover {
  background: darkred;
  transform: translateY(-3px);
}

.instagram {
  background: #E1306C;
  color: white;
}

.instagram:hover {
  opacity: 0.85;
  transform: translateY(-3px);
}

/* ============================= */
/* GENEL SECTION */
/* ============================= */

section {
  padding: 80px 20px;
  text-align: center;
}

section h2 {
  margin-bottom: 30px;
  font-size: 32px;
  position: relative;
}

section h2::after {
  content: "";
  width: 60px;
  height: 3px;
  background: crimson;
  display: block;
  margin: 10px auto 0 auto;
}

/* ============================= */
/* ANA SAYFA BİLGİ */
/* ============================= */

.bio {
  max-width: 800px;
  margin: auto;
  font-size: 18px;
  opacity: 0.9;
}

/* ============================= */
/* BEN KİMİM SAYFASI */
/* ============================= */

.about-page {
  padding: 100px 20px;
  max-width: 850px;
  margin: auto;
  line-height: 1.9;
  font-size: 18px;
}

.about-page h1 {
  margin-bottom: 50px;
  font-size: 40px;
}

.about-page p {
  margin-bottom: 25px;
  opacity: 0.95;
}

.signature {
  margin-top: 40px;
  font-weight: bold;
  color: crimson;
  font-size: 20px;
}

/* ============================= */
/* FOOTER */
/* ============================= */

footer {
  background: #111;
  padding: 25px;
  text-align: center;
  font-size: 14px;
  opacity: 0.6;
  border-top: 1px solid #222;
}

/* ============================= */
/* ANİMASYONLAR */
/* ============================= */

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================= */
/* RESPONSIVE (MOBİL UYUM) */
/* ============================= */

@media (max-width: 768px) {

  header h1 {
    font-size: 36px;
  }

  .tagline {
    font-size: 16px;
  }

  .btn {
    padding: 12px 20px;
    font-size: 14px;
  }

  nav a {
    display: block;
    margin: 10px 0;
  }

  section {
    padding: 60px 15px;
  }

  .about-page {
    font-size: 16px;
  }

}